Predict the output

public class BK implements Runnable
{
 public void demo()
 {
  System.out.printf(" Code works fine!! ");
 }
 try
 {
  public BK()
  {
   Thread.sleep(5000);
  }
 }
 catch (InterruptedException e)
 {
  e.printStackTrace();
 }
 public static void main(String[] args)
 {
  BK b = new BK();
  Thread thread = new Thread(obj);
  thread.BK();
  System.out.printf("Strive towards perfection");
 }
}